The kanji 秒 represents "second" as in a unit of time. It specifically refers to a very short duration, one-sixtieth of a minute.

・On-yomi (音読み): ビョウ (byou) ・Kun-yomi (訓読み): None, as the concept is borrowed from Chinese and doesn't have a direct native Japanese word.

⚫︎一秒 (ichibyou) Translation: One second. ⚫︎秒速 (byousoku) Translation: Speed per second. ⚫︎数秒 (suubyou) Translation: Several seconds.

The kanji 秒 is a phono-semantic compound (形声文字). The left side is the radical 禾 (kome), meaning "grain" or "rice." The right side is 少 (shou), which means "few" or "small." The original meaning possibly related to small units of time used for measuring grains. This combination creates a character that relates to a short, small unit of time. Over time, the meaning shifted to specifically represent "second."